#head li a {
    list-style-type: none;  /*去除圆点*/
    text-align: center;  /*文字居中对齐*/
    color: grey;
    text-decoration: none;  /*去除文字超链接下划线*/
}

.head_right{
    float:right;
 
}
.head_right ul {
    margin:0;
    padding:0;
    float: right;
    background-color: #C6E1D2;
    border-width: 1px;
    border-style: solid;
    border-color: aquamarine;
}
.head_right li {
    list-style-type: none;
    color:white;
    width: 100px;
    text-align: center;
    float: left; /* li横向显示*/
    line-height: 40px; 
}
.head_count {
    margin-left: 1%;
    margin-bottom: -3%; 
}


#navigator {
    width: 90%;
    height: 40px;  
    background-color: coral;
}

#navigator ul {   
    margin:0;
    padding:0;
 
}

#navigator li {
    float: left;   /* li横向显示*/
    list-style-type: none;  /*去除圆点*/
    width: 80.4px;  /* li宽度*/
    text-align: center;  /*文字居中*/
    line-height: 40px;  /*行高*/
    cursor: pointer;  /*鼠标样式*/
    
}

#navigator a {
    color: aliceblue;
    text-decoration: none;  /*去除文字超链接下划线*/
}

#navigator li:hover{     /*悬停*/
    background-color:red;
    font-weight: bold;   /*字体加粗*/
    line-height: 45px; 
}

#banner>img {
    width: 100%;
    height: 150px;
    margin-top: 1%;
}

#content {
    width: 90%;
    height: 70%;
    border-width: 2px; 
    border-style: solid;
    border-color: lawngreen;
}

.content_bg {
    margin-left: -1%;
}

.books {
    width: 90%;
    height: 30%;
    margin-left: 5%;
 
}
.books> div{
    display: inline-block;
}

.book1No1 {
    float: left;
    position: relative;
    top: 10px;
    left: 52px;
    z-index: 10;
}
.book1-01 {
    float: left;
    position: relative;
    top:4px; 
    z-index: 1;

}
.book1_intro {
    width: 39%;
    height:30%;
 
   
}

#book1{
    float: left;
    width: 50%;
    height: 40%;
 
}
#book1 div{
    display: inline-block;
}



#books_right {
    width: 45%;
    height: 30%;
   
   
}


.book2 div{
    display: inline-block;
}
.book2_No {
    float: left;
    position: relative;
    top: -4px;
    left: 27px;
}

.book-02{
    float: left;
}

.book2_intro{
    float: left;
    width: 48%;
    height:30%;
    
}
#book3 {
    float: left;
}

#book3 > div {
    display: inline-block;
}

.book3_No {
    float: left;
    position: relative;
    top: -4px;
    left: 27px;
    z-index: 10;
}
.book-03 {
    float: left;
    position: relative;
    top: -8px;
    left: 3px;
    z-index: 1;

}


 .title {
    position: relative;
    top:-7px;
    left:4px; 
    font-size: 0.9em;
    color: lightskyblue;
}

 .author {
    position: relative;
    top:-13px;
    left:4px; 
    font-size: 0.8em;
 
}

 .public {
    position: relative;
    top:-17px;
    left:4px; 
    font-size: 0.8em;
     
}

.price {
    position: relative;
    top:-21px;
    left:4px; 
    font-size: 0.8em;
    
}
.intro {
    position: relative;
    top:-24px;
    left:4px; 
    font-size: 0.8em;
    
}

.book2_intro> p {
    font-size: 0.8em;
}



#foot {
    
    line-height: 40px;
    bottom: 0;
    text-align: center;
    font-family: Arial;
    font-size: 12px;
    letter-spacing: 1px;
}

#foot div {
    display: inline-block;
}
#foot img{
    text-align: center;
    margin-bottom: -22px;
    z-index: 10;
}